Mason (Seasonal)

National Park Service•San Juan, PR

About The Position

The Mason performs skilled masonry work on a wide range of structures, including walls, foundations, floors, parapets, walkways, chimneys, vaults, manholes, and fireplaces, using brick, block, stone, concrete, plaster, and related materials. The position also involves assessing and repairing historic masonry features, including repointing, tuckpointing, stone repair, mortar matching, and reconstruction of damaged or deteriorated components on historic buildings, features, and landscapes. The Mason interprets drawings, sketches, scope documents, and work orders; determines materials and tools; and sequences work to support structural integrity and preservation standards. The role includes using hand and power tools to shape and set masonry materials, mixing and applying mortar, grout, concrete, and other bonding materials, and conducting visual inspections to identify deterioration, structural issues, moisture problems, and needed repairs. Work is primarily outdoors, often in harsh weather and potentially at remote locations, varied elevations, or near bodies of water. The work may involve ladders, scaffolds, cramped or hard-to-reach spaces, uneven terrain, hazardous materials, and exposure to dust, noise, vibration, and other occupational hazards. The position may require on-call work, evenings, weekends, holidays, overtime, or shift work. Seasonal entry-on-duty timing is variable; anticipated entry on duty is March through July 2027.

Requirements

U.S. citizenship is required.
Appointment is subject to a background investigation and favorable adjudication.
Males must meet Selective Service registration requirements.
Must meet the applicable minimum age requirement for employment; government vehicle operators must be at least 18 years old.
Must possess the knowledge, skills, and abilities for the listed job-related factors, including the ability to perform the work without more than normal supervision (screen-out), technical practices, interpretation of instructions and specifications, measurement and layout, tool and equipment use and maintenance, dexterity and safety, and knowledge of materials.
Must meet at least 2 points on the screen-out element and obtain an average of at least 2 points on all job elements to be considered qualified.
Must be physically fit for the work, including lifting or carrying up to 50 pounds unassisted and occasionally up to 100 pounds with assistance.
A valid driver's license is required when driving is part of official duties.
A specific length of experience is not required; qualification is based on the quality of relevant experience and demonstrated knowledge and ability.
Must provide a resume that documents relevant experience and supports responses to the assessment questionnaire.
Must participate in the Direct Deposit Electronics Funds Transfer Program.
May be required to occupy government quarters, wear a uniform, work on-call or irregular hours, complete training, or obtain and maintain a government credit card with travel and purchase authority.

Responsibilities

Perform skilled masonry work on structures such as walls, foundations, floors, parapets, walkways, chimneys, vaults, manholes, and fireplaces.
Assess and repair historic masonry features, including repointing, tuckpointing, stone repair, mortar matching, and reconstruction of damaged or deteriorated components.
Interpret drawings, sketches, scope documents, and work orders; determine required materials and tools; and sequence work.
Cut, shape, fit, and set brick, block, and stone using hand and power tools.
Mix and apply mortar, grout, concrete, and other bonding materials; ensure proper alignment, finish, and appearance.
Conduct periodic operational and visual inspections to identify masonry deterioration, structural issues, moisture problems, and required maintenance or repairs.
Operate a government or private motor vehicle as part of official duties when required.
Complete required training and operate a four-wheel-drive vehicle when required.
Comply with safety and occupational health requirements and wear required protective equipment.